Now showing items 1-20 of 22

  • 3D convolutional neural networks for brain tumor segmentation 

    Casamitjana Díaz, Adrià; Puch Giner, Santi; Aduriz Saiz, Asier; Sayrol Clols, Elisa; Vilaplana Besler, Verónica (2016)
    Conference lecture
    Restricted access - publisher's policy
    This paper presents our work on applying 3D Convolutional Networks for brain tumor segmentation for the BRATS challenge. We are currently experimenting with different 3D fully convolutional architectures. We present ...
  • 3D convolutional neural networks for brain tumor segmentation: a comparison of multi-resolution architectures 

    Casamitjana Díaz, Adrià; Puch Giner, Santi; Aduriz Saiz, Asier; Vilaplana Besler, Verónica (Springer, 2017-04-24)
    Part of book or chapter of book
    Restricted access - publisher's policy
  • A morphological approach for segmentation and tracking of human faces 

    Marqués Acosta, Fernando; Vilaplana Besler, Verónica (Barcelona, 2000)
    Conference lecture
    Open Access
    A new technique for segmenting and tracking human faces in video sequences is presented. The technique relies on morphological tools such as using connected operators to extract the connected component that more likely ...
  • Automatic keyframe selection based on mutual reinforcement algorithm 

    Ventura Royo, Carles; Giró Nieto, Xavier; Vilaplana Besler, Verónica; Giribet, Daniel; Carasusan, Eusebio (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    This paper addresses the problem of video summarization through an automatic selection of a single representative keyframe. The proposed solution is based on the mutual reinforcement paradigm, where a keyframe is selected ...
  • Caption text extraction for indexing purposes using a hierarchical region-based image model 

    León Cristóbal, Míriam; Vilaplana Besler, Verónica; Gasull Llampallas, Antoni; Marqués Acosta, Fernando (2010-02-17)
    Conference lecture
    Open Access
    This paper presents a technique for detecting caption text for indexing purposes. This technique is to be included in a generic indexing system dealing with other semantic concepts. The various object detection algorithms ...
  • Elaboració de materials transversals per a l'aprenentatge actiu de les matèries de processat d'imatge i vídeo pels graus de sistemes audiovisuals i de telecomunicacions 

    Vilaplana Besler, Verónica; Casas Pla, Josep Ramon; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Morros Rubió, Josep Ramon; Pardàs Feliu, Montse; Ruiz Hidalgo, Javier; Salembier Clairon, Philippe Jean (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-02-08)
    Conference report / Conference lecture
    Open Access
    La finalitat del projecte ha estat promoure la col·laboració i coordinació entre les diverses assignatures de processat d'imatge i vídeo impartides per professors del Departament de TSC, als graus de telecomunicacions ...
  • Face tracking using a region-based mean-shift algorithm with adaptive object and background models 

    Vilaplana Besler, Verónica; Varas, David (2009-05-29)
    Conference lecture
    Open Access
    This paper proposes a technique for face tracking based on the mean shift algorithm and the segmentation of the images into regions homogeneous in color. Object and background are explicitly modeled and updated through ...
  • Hierarchical navigation and visual search for video keyframe retrieval 

    Ventura Royo, Carles; Martos Asensio, Manuel; Giró Nieto, Xavier; Vilaplana Besler, Verónica; Marqués Acosta, Fernando (Springer Verlag, 2012)
    Conference lecture
    Open Access
    This work presents a browser that supports two strategies for video browsing: the navigation through visual hierarchies and the retrieval of similar images. The input videos are firstly processed by a keyframe extractor ...
  • Human face segmentation and tracking using connected components and partition projection 

    Marqués Acosta, Fernando; Vilaplana Besler, Verónica; Buxes, A (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Conference report
    Open Access
    A new technique for segmenting and tracking human faces in video sequences is presented. The algorithm uses a connected operator to extract the connected component that more likely belongs to a face. Such a connected ...
  • Improving retrieval accuracy of Hierarchical Cellular Trees for generic metric spaces 

    Ventura Royo, Carles; Vilaplana Besler, Verónica; Giró Nieto, Xavier; Marqués Acosta, Fernando (2013-09)
    Article
    Restricted access - publisher's policy
    Abstract Metric Access Methods (MAMs) are indexing techniques which al- low working in generic metric spaces. Therefore, MAMs are specially useful for Content-Based Image Retrieval systems based on features which use ...
  • Improving spatial codification in semantic segmentation 

    Ventura Royo, Carles; Giró Nieto, Xavier; Vilaplana Besler, Verónica (2015)
    Conference report
    Restricted access - publisher's policy
    This paper explores novel approaches for improving the spatial codification for the pooling of local descriptors to solve the semantic segmentation problem. We propose to partition the image into three regions for each ...
  • Magnetic resonance imaging and machine learning make a valuable combined tool for the screening of preclinical AD 

    Petrone, Paula; Vilaplana Besler, Verónica; Casamitjana Díaz, Adrià; Domingo Gispert, Juan; Molinuevo, Jose Luis; Sánchez Escobedo, Dalila (2017-07)
    Article
    Restricted access - publisher's policy
  • Materials transversals per a l'aprenentatge actiu de les matèries de processat d'imatge i vídeo 

    Morros Rubió, Josep Ramon; Vilaplana Besler, Verónica; Ruiz Hidalgo, Javier; Casas Pla, Josep Ramon; Gasull Llampallas, Antoni; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean (2014)
    Conference report
    Open Access
    Aquest treball vol promoure la col·laboració i coordinació entre assignatures de processat d'imatge/vídeo amb l’objectiu de potenciar els resultats en l'aprenentatge. Les principals contribucions son a) la creació d’un ...
  • Object detection and segmentation on a hierarchical region-based image representation 

    Vilaplana Besler, Verónica; Marqués Acosta, Fernando; León Cristóbal, Míriam; Gasull Llampallas, Antoni (2010)
    Conference lecture
    Open Access
    In this paper we present a general framework for object detection and segmentation. Using a bottom-up unsupervised merging algorithm, a region-based hierarchy that represents the image at different resolution levels is ...
  • Recent Trends in Video Sequence Analysis 

    Garrido Ostermann, Luis; Marqués Acosta, Fernando; Pardàs Feliu, Montse; Salembier Clairon, Philippe Jean; Vilaplana Besler, Verónica (B. Macq, 1997)
    Conference report
    Open Access
    This paper reviews and analyses the problems facing video classification. It investigates how the semantic gap can be bridged. It presents a new taxonomy for video calssifaction based on a lituture survey. It conclueds ...
  • Region-based caption text extraction 

    León Cristóbal, Miriam; Vilaplana Besler, Verónica; Gasull Llampallas, Antoni; Marqués Acosta, Fernando (Springer, 2013)
    Article
    Open Access
    This chapter presents a method for caption text detection. The proposed method will be included in a generic indexing system dealing with other semantic concepts which are to be automatically detected as well. To have a ...
  • Region-based caption text extraction 

    León Cristóbal, Míriam; Vilaplana Besler, Verónica; Gasull Llampallas, Antoni; Marqués Acosta, Fernando (Springer, 2013)
    Part of book or chapter of book
    Restricted access - publisher's policy
    This chapter presents a method for caption text detection. The proposed method will be included in a generic indexing system dealing with other semantic concepts which are to be automatically detected as well. To have a ...
  • Region-based caption text extraction 

    León Cristóbal, Míriam; Vilaplana Besler, Verónica; Gasull Llampallas, Antoni; Marqués Acosta, Fernando (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
    Conference report
    Open Access
    This paper presents a method for caption text detection. The proposed method will be included in a generic indexing system dealing with other semantic concepts which are to be automatically detected as well. To have a ...
  • Region-based face detection, segmentation and tracking. framework definition and application to other objects 

    Vilaplana Besler, Verónica (Universitat Politècnica de Catalunya, 2010-12-17)
    Doctoral thesis
    Open Access
    One of the central problems in computer vision is the automatic recognition of object classes. In particular, the detection of the class of human faces is a problem that generates special interest due to the large number ...
  • Saliency maps on image hierarchies 

    Vilaplana Besler, Verónica (2015-01-01)
    Article
    Open Access
    © 2015 Elsevier B.V. All rights reserved. In this paper we propose two saliency models for salient object segmentation based on a hierarchical image segmentation, a tree-like structure that represents regions at different ...